Thanks to Dr Rohin Francis of Medlife Crisis and Dr Rishi Desai of Osmosis for their feedback.
More info on GiveDirectly
- https://www.givedirectly.org/
- https://www.givewell.org/charities/give-directly

Interactive COVID-19 simulations from Nicky Case and epidemiologist Marcel Salathé:
- https://ncase.me/covid-19

More on logistic growth
- 3Blue1Brown, also regarding disease spread: https://youtu.be/Kas0tIxDvrg
- Primer, regarding carrying capacity: https://youtu.be/uRTtlpD_U54
- Khan Academy, modeling biology with calculus: https://www.khanacademy.org/math/ap-calculus-bc/bc-differential-equations-new/bc-7-9/v/modeling-population-with-differential-equations

Ways to support Primer
- Patreon: https://www.patreon.com/primerlearning
- Store: https://store.dftba.com/collections/primer

For discussion and updates
- Discord: https://discord.gg/NbruaNW
- Reddit: r/primerlearning
- Twitter: @primerlearning
- Facebook: facebook.com/primerlearning

Streaming myself working on these monstrosities:
- Twitch: https://www.twitch.tv/primerjustin

This video is presented under a Creative Commons Attribution-NonCommercial-ShareAlike License. More at:
https://creativecommons.org/licenses/by-nc-sa/4.0/

Made with Unity
Thanks to Same Van Cise and Sebastian Lague for helping me learn Unity. You can find some of their work here:
- https://vancisesam.com/
- https://www.youtube.com/user/Cercopithecan 

Music by Mathieu Keith. For business inquiries: mathieu.keith@gmail.com

Several other inputs into the graphics are from public domain contributions to blendswap.com

Thanks to supporters on Patreon, especially:
José Hamilton
Noah Healy
Vladimir Duchenchuk
Zachariah Richard Fournier
Jordan Scales
Anders Fjeldvær
Erik Broeders
Ghost Goat
Jérôme Graf
Kairui Wang
Luc Cedric R.
Marcial Abrahantes
Thomas Roggina
Bas Velner
Eric Helps
Leonardo Kluppel
Sean Barker
Tamas Gombkoto
Ben Kamens
Ben Komalo
Josh White
Tudor Lincu
Aymeric Duigou--Majumdar
Charly Cardeño
3blue1brown
abledbody
Alex Beardsley
Alex Garber
Alexander Mahone
Alexander Mantzoukas
ALoneCoder
Anselm Eickhoff
Ben McGill
Brian Cloutier
Chad Fertig
Chris
Christy Serbus
Colin Winhall
Daniel Kjellevold Steinsland
Daniel Schramm
DanSoc
Edono Dondolo
Elliot Press
Frank Lin
Garrett F
Jacob Luedecke
Jason Louro
Jason Prado
Jeff
Jorge Arroyo
Julien
Kataklyst
ketura
Kev O.
Kevin Holesh
Krum Valkov
Lee Berman
Lotus
Martin Obretenov
Matthäus Pawelczyk
Max Kaye
Michael Jones
Michael Wang
Mitchell Douglass
Nicky Case
Paul Straw
Philippe Panzini
Ramon Leon
Ravi Jayanti
Rikard Eide
Ryan Mahuron
Sam Van Cise
sunny ho
Talon Howitt
Tengou
ThePotatoGuy
Will Robinson
Wyatt Nelson

Epidemic, Endemic, and Eradication Simulations

Thanks to supporters on Patreon, especially:
Jordan Scales
Kairui Wang
Eric Helps
Ben Kamens
Ben Komalo
Christy Serbus
Sean Barker
Rikard Eide
Wyatt Nelson
Aurélien Géron
Patrick Foster

Send market signals by supporting Primer on Patreon! 
https://www.patreon.com/primerlearning

For discussion and updates
- Discord: https://discord.gg/NbruaNW
- Reddit: r/primerlearning
- Twitter: @primerlearning
- Facebook: facebook.com/primerlearning

Streaming myself working on these monstrosities:
- Twitch: https://www.twitch.tv/primerjustin

This video is presented under a Creative Commons Attribution-NonCommercial-ShareAlike License. More at:
https://creativecommons.org/licenses/by-nc-sa/4.0/

Made with Blender and python. 
- Github: https://github.com/Helpsypoo/primer

Speaking of attribution:
- The music is "Divider" by Chris Zabriskie, distributed under a CC-BY license via Free Music Archive.
- Several other inputs into the graphics are from public domain contributions to blendswap.com

Simulating Supply and Demand

Support these videos on Patreon: https://www.patreon.com/primerlearning
Store: https://store.dftba.com/collections/primer

More on voting theory:
- Interactive by Nicky Case: https://ncase.me/ballot/
-  Interactive by Paretoman: https://www.smartvotesim.com/
- The best single resource I found: https://www.lesswrong.com/posts/D6trAzh6DApKPhbv4/a-voting-theory-primer-for-rationalists

Organizations that advocate for voting reform:
- Team Approval: https://electionscience.org/
- Team Instant Runoff: https://www.fairvote.org/

For discussion and updates
- Discord: https://discord.gg/NbruaNW
- Reddit: r/primerlearning
- Twitter: @primerlearning
- Facebook: facebook.com/primerlearning

Streaming myself working on these monstrosities:
- Twitch: https://www.twitch.tv/primerjustin

This video is presented under a Creative Commons Attribution-NonCommercial-ShareAlike License. More at:
https://creativecommons.org/licenses/by-nc-sa/4.0/

Made with Unity
https://github.com/Helpsypoo/PrimerUnity

Music by Mathieu Keith. For business inquiries: mathieu.keith@gmail.com

Several other inputs into the graphics are from public domain contributions to blendswap.com

Thanks to supporters on Patreon, especially:
Zachariah Richard Fournier
Vladimir Duchenchuk
Noah Healy
José Hamilton
Matthijs Ruijgrok
Christopher
Sam Shaw
Anthony Eufemio
JMakes
Kairui Wang
Marcial Abrahantes
Luc Cedric R.
Erik Broeders
Anders Fjeldvær
Ghost Goat
Jérôme Graf
Roy Steves
Mike Schmidt
PeepPhysics
Eric Helps
Sean Barker
Tamas Gombkoto
Ben Kamens
Ben Komalo
Josh White
Aymeric Duigou--Majumdar
Christy Serbus
Rikard Eide
Wyatt Nelson
3blue1brown
Bas Velner
Sam Van Cise
Kevin Holesh
Anselm Eickhoff
Will Robinson
Daniel Schramm
Jason Prado
Elliot Press
Jeff
Garrett
Talon Howitt
Paul Straw
Brian Cloutier
Mitchell Douglass
Daniel Kjellevold Steinsland
Michael Wang
Frank Lin
Jason Louro
Edono Dondolo
Chris
Alex Garber
ALoneCoder
Krum Valkov
Matthäus Pawelczyk
Nicky Case
Ben McGill
Lee Berman
Lotus
DanSoc
Tengou
OuroCat
Jacob Luedecke
ketura
Julien
Kevo
Alexander Mantzoukas
abledbody
Jorge Arroyo
Chad Fertig
sunny ho
Ravi Jayanti
Gabriele Siino
Jay
Darrien Kennedy
Alba Caparros-Roissard
Juan Camilo Chaparro
Jeff Linse
Timothy Furman
Clinton Soll
AlecZero

Simulating alternate voting systems

Try catching cheaters yourself: https://primerlearning.org/

Support these videos on Patreon: https://www.patreon.com/primerlearning
Plush blobs and other stuff: https://store.dftba.com/collections/primer

Binomial probability example (the whole section on Khan Academy may be helpful)
https://www.khanacademy.org/math/statistics-probability/random-variables-stats-library/binomial-random-variables/v/probability-of-making-2-shots-in-6-attempts

For discussion and updates
- Discord: https://discord.gg/NbruaNW
- Twitter: @primerlearning
- Reddit: r/primerlearning

Made with Unity and Manim
https://github.com/Helpsypoo/PrimerUnity
https://www.manim.community/

Made possible by support through Patreon:
Anthony Eufemio
Jon Mundle
Zachariah Richard Fournier
Vladimir Duchenchuk
Spline
Christian Gruber
Kairui Wang
Luc Cedric R.
Erik Broeders
Anders Fjeldvær
Jeremy
Guguke
Shayn Osborn
Brian Cloutier
Eric Helps
Sean Barker
Stevie Hryciw
Ben Kamens
Tim Barber
Christy Serbus
Ghost Goat
Sam Shaw
Rikard Eide
Sam Van Cise
Kevin Holesh
Jason Prado
Jeff
Garrett
Daniel Kjellevold Steinsland
Alex Garber
Krum Valkov
Matthäus Pawelczyk
OuroCat
Jacob Luedecke
ketura
Gabriele Siino
Kevo
abledbody
Alba Caparros-Roissard
Jeff Linse
Timothy Furman
Andrew Lang
Flavio Kindler
John Shaffstall
Bez Noferesti

How To Catch A Cheater With Math

Today we are painting a cartoon character using mathematics.
Support this channel by subscribing or joining my Patreon: https://www.patreon.com/inigoquilez

This is the link to the real-time rendering code (that you can edit yourself live) for the painting: https://www.shadertoy.com/view/WsSBzh
 
Links I mentioned in the video I'd leave here:
* Raymarching: https://iquilezles.org/articles/raymarchingdf
* SDF of a Line Segment: https://www.youtube.com/watch?v=PMltMdi1Wzg
* Smoothstep: https://youtu.be/bdICU2uvOdU?t=3423
* SDF of a Rounded Box: https://www.youtube.com/watch?v=62-pRVZuS5c

Donate: http://paypal.me/inigoquilez
Subscribe: https://www.youtube.com/c/inigoquilez
Support: https://www.patreon.com/inigoquilez
Twitter: https://twitter.com/iquilezles
Facebook: https://www.facebook.com/inigo.quilez

0:00 Sculpting basic shape
3:45 Blocking basic lighting
6:20 Sculpting face
8:50 Painting face colors
11:38 Eyes
12:55 Face animation
14:58 Hair
16:15 Makeup
17:00 Hoodie
18:42 Background
19:46 Bridge
20:58 Trees
22:22 Finishing
23:21 Conclusion

Music by Bent Stamnes (https://twitter.com/gloom303)

Painting a Character with Maths

Primer Merchandise: https://store.dftba.com/collections/primer
Support Primer on Patreon: https://www.patreon.com/primerlearning

For discussion and updates
- Discord: https://discord.gg/NbruaNW
- Reddit: r/primerlearning
- Twitter: @primerlearning
- Facebook: facebook.com/primerlearning

Streaming myself working on these monstrosities:
- Twitch: https://www.twitch.tv/primerjustin

This video is presented under a Creative Commons Attribution-NonCommercial-ShareAlike License. More at:
https://creativecommons.org/licenses/by-nc-sa/4.0/

Made with Unity
Thanks to Same Van Cise and Sebastian Lague for helping me learn Unity. You can find some of their work here:
https://vancisesam.com/
https://www.youtube.com/user/Cercopithecan 

Music by Mathieu Keith. For business inquiries: mathieu.keith@gmail.com

Several other inputs into the graphics are from public domain contributions to blendswap.com

Thanks to supporters on Patreon, especially:
Zachariah Richard Fournier
Vladimir Duchenchuk
Noah Healy
Jason Han
Jordan Scales
Jacob Maes
Marcial Abrahantes
Luc Cedric R.
Kairui Wang
Feimeng Zheng
Erik Broeders
Tamas Gombkoto
Sean Barker
Leonardo Kluppel
Eric Helps
Bas Velner
Victor Moisescu
Tudor Lincu
Josh White
Ben Komalo
Ben Kamens
Charly Cardeño
Aymeric Duigou--Majumdar
Wyatt Nelson
Will Robinson
Tom
ThePotatoGuy
Tengou
Talon Howitt
Sam Van Cise
Ryan Mahuron
Roy Steves
Rikard Eide
Ramon Leon
potted_penguin
Philippe Panzini
Paul Straw
Niko
Nicky Case
Morgan Baglin-Clarke
Mitchell Douglass
Michael Wang
Michael Jones
Max Kaye
Matthäus Pawelczyk
Martin Obretenov
Lotus
Lee Berman
Krum Valkov
Kevin Holesh
ketura
Jonathan Sterkenburg
Jeff
Jason Prado
Jason Louro
Jacob Luedecke
Garrett F
EndyStar
Elliot Press
Edono Dondolo
DanSoc
Daniel Schramm
Daniel Kjellevold Steinsland
Daniel Giavedoni
Colin Winhall
Christy Serbus
Chris Loftus
Chris
Brian
Ben McGill
Anselm Eickhoff
Andreas Carbel
ALoneCoder
Alexander Mahone
Alex Garber
Alex Beardsley
Alec Burns
3blue1brown

Simulating Foraging Decisions

Brilliant: http://www.brilliant.org/primer

Papers:
- https://www.researchgate.net/publication/41910312_Altruism_Spite_and_Greenbeards
- https://www.reed.edu/biology/professors/srenn/pages/teaching/2007_syllabus/2007_readings/a13_Keller_1998.pdf

For discussion and updates
- Discord: https://discord.gg/NbruaNW
- Reddit: r/primerlearning
- Twitter: @primerlearning

Sometimes streaming myself working on these monstrosities:
- Twitch: https://www.twitch.tv/primerjustin

This video is presented under a Creative Commons Attribution-NonCommercial-ShareAlike License. More at:
https://creativecommons.org/licenses/by-nc-sa/4.0/

Made with Unity
https://github.com/Helpsypoo/PrimerUnity

Music by Mathieu Keith. For business inquiries: mathieu.keith@gmail.com

Several other inputs into the graphics are from public domain contributions to blendswap.com

Plush blobs and other merch: https://store.dftba.com/collections/primer
Support these videos on Patreon: https://www.patreon.com/primerlearning

Made possible by support through Patreon:
abledbody
Alba Caparros-Roissard
AlecZero
Alex Garber
ALoneCoder
Anders Fjeldvær
Andrew Lang
Angela Tam
Anselm Eickhoff
Anthony Eufemio
Aymeric Duigou--Majumdar
Ben Kamens
Ben Komalo
Ben McGill
Brian Cloutier
Christian Gruber
Christopher
Christy Serbus
cooper
Cowit
Daniel Kjellevold Steinsland
Daniel Schramm
Darrien Kennedy
Edono Dondolo
Eric Helps
Erik Broeders
Fabian Aisenbrey
Flavio Kindler
Gabriele Siino
Garrett
Ghost Goat
Guguke
Jacob Luedecke
Jason Prado
Jason Singh
Jeff
Jeff Linse
Jeremy
JMakes
John Shaffstall
Johnny Vaughan
Jon Mundle
Jorge Arroyo
José Hamilton
Josh White
Juan Camilo Chaparro
Kairui Wang
ketura
Kevin Holesh
Kevo
Krum Valkov
Lotus
Luc Cedric R.
Lunchbag Rodriguez
Marcial Abrahantes
Matt Welke
Matthäus Pawelczyk
Matthijs Ruijgrok
Melvin Sowah
Michael Wang
Mike Schmidt
Nicky Case
Noah Healy
OuroCat
Paul Straw
Ravi Jayanti
Ride To Vote
Rikard Eide
Roy Steves
Sam Shaw
Sam Van Cise
Sean Barker
sunny ho
Sven Le Moine Bauer
Talon Howitt
Tengou
Timothy Furman
Vladimir Duchenchuk
Will Robinson
William Holz
Wyatt Nelson
Zachariah Richard Fournier
3blue1brown

Simulating Green Beard Altruism

Which pair of numbers x and y do satisfy x^y = y^x? 
Support this channel: https://www.patreon.com/inigoquilez

Tutorials on maths, art and computer graphics: https://iquilezles.org
Code for this video: https://www.shadertoy.com/view/XdySR3.

Donate: http://paypal.me/inigoquilez
Subscribe: https://www.youtube.com/c/inigoquilez
Support: https://www.patreon.com/inigoquilez
Twitter: https://twitter.com/iquilezles
Facebook: https://www.facebook.com/inigo.quilez